Method for building three-dimensional objects in extrusion-based additive manufacturing systems using core-shell consumable filaments
US8920697B2 · kind B2 · utility
92Cited by
65References
20Claims
0Family size
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Key dates
| Filing date | Mar 14, 2012 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jan 3, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2929
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a first thermoplastic material, and a shell portion of a second thermoplastic material that is compositionally different from the first thermoplastic material, where the consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional object, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.